Confectionery Drying Chamber Airflow Layout for Starch Safety
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Solution Overview
Problem
Existing drying plants for confectionery products lack control over airflow flow rate, speed, and directionality within the drying chamber, leading to inefficiencies and potential explosive conditions due to direct airflow contact with starch.
Innovation Solution
A drying plant design featuring a closed air circuit with a distribution channel and suction assembly that directs airflow downward and across the chamber, using deflector fins to manage airflow speed and direction, ensuring controlled airflow paths and preventing starch dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If airflow is directly introduced into the drying chamber without control, then the drying process can proceed, but airflow speed and direction cannot be controlled leading to potential explosive conditions
Solution Approach 1:
The drying chamber is divided into multiple zones with controlled airflow paths. The distribution channel includes multiple outlets positioned at different locations, allowing segmented control of airflow to different areas of the chamber, preventing uncontrolled air-starch mixing that could lead to explosions
Solution Approach 2:
A distribution channel acts as an intermediary device between the air source and the drying chamber environment. This channel controls and directs airflow through regulated outlets, serving as a safety buffer that prevents direct uncontrolled air introduction while maintaining drying functionality
2Productivity
If airflow is increased to improve drying efficiency, then drying speed increases, but energy consumption increases
Solution Approach 1:
Different regions of the drying chamber receive optimized airflow based on local drying requirements. The distribution channel provides targeted airflow to specific areas where it is most needed, rather than uniform high-volume airflow throughout, improving drying efficiency while reducing overall energy consumption
Solution Approach 2:
The system controls airflow parameters (speed, direction, distribution) to optimize drying efficiency. By regulating airflow characteristics rather than simply increasing volume, the system achieves high productivity without proportional increases in energy consumption
3Reliability
If airflow is directed downward to prevent starch dispersion, then explosion risk is reduced, but airflow distribution uniformity must be maintained
Solution Approach 1:
The distribution channel is segmented into multiple outlets positioned at different locations and angles. This segmentation allows downward-directed airflow to be distributed uniformly across different zones, simultaneously achieving explosion prevention through downward direction and uniformity through multi-point distribution
Solution Approach 2:
The distribution channel extends in the transverse direction across the chamber, adding a spatial dimension to airflow control. This transverse extension allows downward airflow to be distributed across the width of the chamber, achieving both directional control for safety and spatial distribution for uniformity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances airflow control and distribution, reducing energy consumption and improving product quality by optimizing airflow speed and direction, while preventing starch spread and potential explosions.
Implementation Method 1
heating, to the temperatures specified by the recipe for the product being treated
Implementation Method 2
cooling and de-humidification, where the condensation is recovered and separated from the airflow
Implementation Method 3
cooling and de-humidification, where the condensation is recovered and separated from the airflow
Implementation Method 4
airflow, used as a means of heat and mass exchange with the products, is maintained at a temperature and humidity suitable for giving the product the desired shapes and characteristics
Implementation Method 5
said suction assembly comprising air suction openings arranged in the upper portion of said drying chamber
Implementation Method 6
The drying process takes place inside specific chambers or tunnels, in which mainly moisture is exported from the confectionery from the powder product containing it but also from the air forced inside the chamber
Implementation Method 7
The purpose of drying is to generate a solid matrix which must match the desired product specifications
Data Source
AI summary
A drying plant (100) for the production of confectionery products is described, comprising a drying chamber (3), an air treatment unit (2), a delivery assembly (4) and a suction assembly (5), an inner air distribution assembly fluidically connected to said delivery assembly (4) and to said suction assembly (5) so as to form a closed air circuit characterized in that said inner distribution assembly comprises at least one closed-section delivery channel (7) comprising a plurality of primary outlets (8) configured to send a portion of the airflow into the lower portion of the drying chamber (8).